Volcanoes of East-central Baja California - El Aguajito Caldera

El Aguajito Caldera is north-northeast of Las Tres Vírgenes, where pyroclastic rocks and lava date to between 500,000-800,000 years old. The rim of the caldera is not continuously exposed at the surface, but the rocks have a subtle circular arrangement. Like La Reforma, the northern rim of El Aguajito follows the coastline. The flat-looking rock formations, carved by arroyos, are lava domes, hardened mounds of slow-moving, sticky lava. The topography in the southern part of the caldera is more rugged and irregular. The rocks are a combination of pyroclastic deposits and a slightly more fluid lava than what erupted near the coast.